Every user of user_insn() passes an user memory pointer to this macro. Add might_fault() to user_insn() so we can spot users which are using this macro in sections where page faulting is not allowed.
Signed-off-by: Sebastian Andrzej Siewior <[email protected]> --- arch/x86/include/asm/fpu/internal.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h index 69dcdf195b611..978a1633c0698 100644 --- a/arch/x86/include/asm/fpu/internal.h +++ b/arch/x86/include/asm/fpu/internal.h @@ -106,6 +106,7 @@ extern void fpstate_sanitize_xstate(struct fpu *fpu); #define user_insn(insn, output, input...) \ ({ \ int err; \ + might_fault(); \ asm volatile(ASM_STAC "\n" \ "1:" #insn "\n\t" \ "2: " ASM_CLAC "\n" \ -- 2.20.0.rc1
